CN104090693A - Capacitance touch screen - Google Patents
Capacitance touch screen Download PDFInfo
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- CN104090693A CN104090693A CN201410196442.8A CN201410196442A CN104090693A CN 104090693 A CN104090693 A CN 104090693A CN 201410196442 A CN201410196442 A CN 201410196442A CN 104090693 A CN104090693 A CN 104090693A
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- conductive film
- conducting film
- touch screen
- ito conducting
- liquid crystal
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Abstract
The invention discloses a capacitance touch screen, which belongs to the field of touch screens, for solving the problems that an on-cell touch screen is low in sensitivity and an ITO (Indium Tin Oxide) conductive film is not uniform in thickness. The capacitance touch screen comprises a glass cover plate, a piece of liquid crystal display glass, a color light filter on the liquid crystal display glass as well as a metal conductive film, an OC insulating layer, an ITO conductive film and a flexible lead, wherein the liquid crystal display glass, the color light filter, the metal conductive film, the OC insulating layer, the ITO conductive film and the glass cover plate are sequentially arranged and are adhered to one another; the flexible lead is arranged between the ITO conductive film and the glass cover plate and is electrically connected with the ITO conductive film; the part where the flexible lead contacts with the ITO conductive film is positioned on the edge of the ITO conductive film; the flexible lead extends outwards. Due to adoption of the metal conductive film, the OC insulating layer, the ITO conductive film which are arranged in sequence, an SITO (Single Indium Tin Oxide) process is established, the sensitivity of the touch screen is improved, meanwhile the thickness of the ITO conductive film is kept relatively uniform, the performing of a yellow light manufacturing process is facilitated, and the yield is improved.
Description
Technical field
The present invention relates to touch-screen field, particularly a kind of capacitance touch screen.
Background technology
At present on-cell capacitive touch screen generally adopts various individual layer multiple spot capacitive touch sensors structures, can support the request for utilization of multiple point touching, but the reaction velocity of single touch screen, sensitivity are short of to some extent.In addition in existing technique, the thickness fluctuation scope of metal conductive film, ITO conducting film is larger, and gold-tinted making technology is implemented inconvenience, and yields is not high.
Summary of the invention
The object that the present invention will reach is to provide a kind of capacitance touch screen, highly sensitive, ITO conducting film even thickness.
In order to achieve the above object, the present invention adopts following technical scheme: a kind of capacitance touch screen, comprise the colored filter on glass cover-plate, liquid crystal display glass and liquid crystal display glass, also comprise metal conductive film, OC insulation course, ITO conducting film and flexible lead wire, liquid crystal display glass, colored filter, metal conductive film, OC insulation course, ITO conducting film, glass cover-plate are arranged according to the order of liquid crystal display glass, colored filter, metal conductive film, OC insulation course, ITO conducting film, glass cover-plate and are bonded to each other; Flexible lead wire is located between ITO conducting film and glass cover-plate and with ITO conducting film and is electrically connected, and the part that flexible lead wire contacts with ITO conducting film is positioned at ITO conducting film edge, and flexible lead wire stretches out.
Further, described ITO conducting film and described glass cover-plate are by OCA transparent optical glue bond.
Adopt after technique scheme, tool of the present invention has the following advantages:
The metal conductive film, OC insulation course, the ITO conducting film that between glass cover-plate and liquid crystal display glass, are arranged in order form SITO technique, improve the sensitivity of touch-screen, can keep the thickness of ITO conducting film comparatively even, be convenient to gold-tinted making technology and implement, improved yields simultaneously.
Brief description of the drawings
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is the explosive view of each layer in an embodiment of the present invention.
Embodiment
Figure 1 shows that a kind of embodiment of the present invention.
A kind of capacitance touch screen, comprise the colored filter 7 on glass cover-plate 1, liquid crystal display glass 8 and liquid crystal display glass 8, also comprise metal conductive film 6, OC insulation course 5, ITO conducting film 4 and flexible lead wire 3, liquid crystal display glass 8, colored filter 7, metal conductive film 6, OC insulation course 5, ITO conducting film 4, glass cover-plate 1 are arranged according to the order of liquid crystal display glass 8, colored filter 7, metal conductive film 6, OC insulation course 5, ITO conducting film 4, glass cover-plate 1 and are bonded to each other; Flexible lead wire 3 is located between ITO conducting film 4 and glass cover-plate 1 and with ITO conducting film electricity 4 and is connected, the part that flexible lead wire 3 contacts with ITO conducting film 4 is positioned at ITO conducting film 4 edges, flexible lead wire 3 stretches out and is electrically connected with the parts such as peripheral control unit, and ITO conducting film 4 is bonding by OCA transparent optical cement 2 with glass cover-plate 1.
The manufacture craft of above-mentioned capacitance touch screen, comprise the steps, get the liquid crystal display glass layer with colored filter, plated metal conducting film on colored filter, keep the thickness of metal conductive film between 150 nanometer-200 nanometers, taking as far as possible close 175 nanometers as preferred, and etching is passed a bridge, is gone between, draws a little; On metal conductive film, cover OC insulation course, keep the thickness of OC insulation course in 15 nanometer-20 nanometers, taking as far as possible close 17.5 nanometers as preferred; On OC insulation course, use temperature (also can use other values in 215 DEG C, 225 DEG C or 215 DEG C-225 DEG C) the deposition ITO conducting film of 220 DEG C, keep the thickness of ITO conducting film between 130 nanometer-140 nanometers, taking as far as possible close 135 nanometers as preferred, etching ITO figure, and be electrically connected with the gap bridge of metal conductive film; Fixing flexible lead-in wire on ITO conducting film; Use transparent optical cement that glass cover-plate is conformed on ITO conducting film, make capacitance touch screen.
The metal conductive film, OC insulation course, the ITO conducting film that between glass cover-plate and liquid crystal display glass, are arranged in order form SITO technique, improve the sensitivity of touch-screen, can keep the thickness of ITO conducting film comparatively even, be convenient to gold-tinted making technology and implement, improved yields simultaneously.
Except above preferred embodiment, the present invention also has other embodiment, and those skilled in the art can make according to the present invention various changes and distortion, only otherwise depart from spirit of the present invention, all should belong to the defined scope of claims of the present invention.
Claims (2)
1. a capacitance touch screen, comprise the colored filter (7) on glass cover-plate (1), liquid crystal display glass (8) and liquid crystal display glass, it is characterized in that: also comprise metal conductive film (6), OC insulation course (5), ITO conducting film (4) and flexible lead wire (3), liquid crystal display glass, colored filter, metal conductive film, OC insulation course, ITO conducting film, glass cover-plate are arranged according to the order of liquid crystal display glass, colored filter, metal conductive film, OC insulation course, ITO conducting film, glass cover-plate and be bonded to each other; Flexible lead wire is located between ITO conducting film and glass cover-plate and with ITO conducting film and is electrically connected, and the part that flexible lead wire contacts with ITO conducting film is positioned at ITO conducting film edge, and flexible lead wire stretches out.
2. a kind of capacitance touch screen according to claim 1, is characterized in that: described ITO conducting film and described glass cover-plate are bonding by OCA transparent optical cement (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410196442.8A CN104090693A (en) | 2014-05-09 | 2014-05-09 | Capacitance touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410196442.8A CN104090693A (en) | 2014-05-09 | 2014-05-09 | Capacitance touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104090693A true CN104090693A (en) | 2014-10-08 |
Family
ID=51638413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410196442.8A Pending CN104090693A (en) | 2014-05-09 | 2014-05-09 | Capacitance touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104090693A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109426383A (en) * | 2017-08-29 | 2019-03-05 | 蓝思科技（长沙）有限公司 | Touch screen sensor and preparation method thereof, touch screen and electronic equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101441545A (en) * | 2008-12-08 | 2009-05-27 | 中国南玻集团股份有限公司 | Capacitance type touch control screen and manufacturing method thereof |
| CN102116954A (en) * | 2011-03-17 | 2011-07-06 | 信利半导体有限公司 | Capacitance-type touch screen displayer |
| CN102819375A (en) * | 2012-09-14 | 2012-12-12 | 常州裕成光电有限公司 | Capacitive touch screen |
| CN203799364U (en) * | 2014-05-09 | 2014-08-27 | 浙江金指科技有限公司 | Capacitive touch screen |
-
2014
- 2014-05-09 CN CN201410196442.8A patent/CN104090693A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101441545A (en) * | 2008-12-08 | 2009-05-27 | 中国南玻集团股份有限公司 | Capacitance type touch control screen and manufacturing method thereof |
| CN102116954A (en) * | 2011-03-17 | 2011-07-06 | 信利半导体有限公司 | Capacitance-type touch screen displayer |
| CN102819375A (en) * | 2012-09-14 | 2012-12-12 | 常州裕成光电有限公司 | Capacitive touch screen |
| CN203799364U (en) * | 2014-05-09 | 2014-08-27 | 浙江金指科技有限公司 | Capacitive touch screen |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109426383A (en) * | 2017-08-29 | 2019-03-05 | 蓝思科技（长沙）有限公司 | Touch screen sensor and preparation method thereof, touch screen and electronic equipment |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141008 |